The Voyager attitude and articulation control system is designed for a three-axis stabilized spacecraft; it uses a biasable sun sensor and a Canopus Star Tracker (CST) for celestial control, as well as a dry inertial reference unit, comprised of three dual-axis dry gryos, for inertial control. A series of complex maneuvers was required during the first of two Voyager spacecraft encounters with Saturn (November 13, 1980); these maneuvers involved rotating the spacecraft simultaneously about two or three axes while maintaining accurate pointing of the scan platform. Titan and Saturn earth occulation experiments and a ring scattering experiment are described. Target motion compensation and the effects of celestial sensor interference are also considered. Failure of the CST, which required an extensive reevaluation of the star reference and attitude control mode strategy, is discussed. Results analyzed thus far show that the system performed with high accuracy, gathering data deeper into Saturn's atmosphere than on any previous planetary encounter.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Voyager Saturn encounter attitude and articulation control experience


    Contributors:
    Carlisle, G. (author) / Hill, M. (author)

    Conference:

    In: Guidance and control 1981 ; 1981 ; Keystone, CO


    Publication date :

    1981-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Voyager encounter with saturn

    Smith, Bradford | Online Contents | 1982




    Satellite ephemerides for Voyager Saturn encounter

    JACOBSON, R. / CAMPBELL, J. / SYNNOTT, S. | AIAA | 1982


    Voyager 1 and Voyager 2 Saturn encounter orbit determination

    CAMPBELL, J. / JACOBSON, R. / RIEDEL, J. et al. | AIAA | 1982